Safety razor and blade



lune 23, 1936. A R ERN 2,045,222

SAFETXr RAZOR AND BLADE Filed sept. 5o., 1933 -hfw/L Patented June 23, 1936 UNITED STATES APATENT OFFICE Application September 30, 1933, Serial No. 691,711 In the Netherlands October 4, 1932` 17 Claims.

This invention relates to improvements in safety razors o1' that type in which the cutting element is provided by a flexible strip-like blade of considerable length. 'I'his blade is coiled in 5 the holder and an end is drawn from the coil l cross-cut slots in at least one rib; to provide a strip-like blade which can be guided in a simple and eiiicient way, while a considerable stiffness is obtained in a direction 'perpendicular to the edge. Owing to this feature the blade can be made very thin, if desired, sothat the holder can contain an extensive blade-length.- By providing the cap and the bridge, between which the part of the blade ready for use is mounted, with a guide-way, fitting in or on one or more ribs of the part of the blade, thisblade is clamped in a simple way, without the drawbacks of known constructions.

The guidance, which fits in or on one or more ribs, has the advantage that the edge of the blade can be brought to the place where itis to be used,

without losing its sharpness.

The various features of the vinvention are il-v lustrated Which- Figure 1 shows a partly longitudinal section and partly a front view.

Figure 2 shows a partly section along thevertical axial line Z-Z, drawn in Fig. 1' and a partly side view.

Figure 3 shows a side view of the solid part with removedcover.

Figure 4 shows a horizontal section along the horizontal axis Y-Y, indicated in Fig. 1.

Figure 5 shows a front view of the strip-like blade which 'in Figure 6 is shown in section together with some other embodiments which are provided with a number of ribs.

yFigure '7 shows on an enlarged scale a section of the bridge piece along which the blade is guided,

which section is also to be seen on a smaller scale in Fig. 2. In the various iigures the lcorresponding parts are indicated by the same reference numbers.

In Fig. 1` the strip-like blade I is shown as being coiled in a circular recess 30 as a supplyin the accompanying drawing in coil 2. Therein a spring B'has been mounted which, tending to expand, keeps the supply-coil pressed against the wall of the recess and causes the longitudinal rib vof the blade to engage the annular guiding groove 3I which is circularly 5 provided in the wall of the circular recess. From the supply-coil 2 the blade I is guided along a guideway 4 over the bridge piece 8, where the blade is ready for use between the points 26, when the cover I5 is moved over the solid part I4, so 10 that the cap I6 clamps the blade against the bridge piec 8. The rib 22 ts in the slot 24 in the cap I6, whilethe mating hollow part 32 of the rib of the blade ts over rib 23 of the bridge piece 8. As the'edges of the cap I6 are inclined 15 the edge 25 of the blade is bent to the desired angle, as is clearly shown in Fig. 7.. The clamping of the cap I6 on the bridge piece 8 is effected by the cover I5, which is held in its position on the solid part I4 by spring-studs in the cover which 20 engage the cavities of the solid part I4.

Before using the apparatus, the cover I5 is removed from the at body part I4, by holding the cover I5 and pulling on the ribbed studs I'l, which are clearly shown in Figures 1, 2 and 3. The re- 25 studs of the cover I5, which engage the cavities 5 in the dat body part I4, loosen, when the flat body part is pulled from the cover.v

The supply-coil 2 with spring 6 is mounted in the circular recess of the solid part I4. Then the end of the blade is pulled through the left slit 21, shown in Fig. 1, and guided over the bridgepiece 8 and subsequently put through slit I3 to the reel 35 member or disc Il mounted in a second recess or chamber 33. By turning the disk I I, on which are the studs I2, the latter engage the blade at the openings I0. vl5`y further turning the disk II the blade is guided through the lowest left slot 28, 40 which is to be seen in Figs. 1 and 3 and in which is the broken end I8 of the blade. The cover I5 is now moved over the solid part I4 and the whole 'is ready for use. A watertight packing is formed by studs 34 of the cap which closely tit in the open- 45 ings 3 of the comblike part of the rib 8. The distance between the openings 3 corresponds to` the distance between the openings ID in the striplike blade, measured in longitudinal direction. The part of the blade between the points 26 can 50 be used for shaving.

When shaving, the teeth l of the' comb of the bridgepiece give the necessary protection, while the lather can flow down in the opening 9.

In order to obtain a new blade-edge the cover The remaining used part of the striplike blade is broken away at slot 28. Figure 5 shows a top'view of the blade. The rib 22 is provided with cross-cuttings 2l.

In Fig. 6 three different forms of the razor. strip are diagrammatically shown.- In one form the strip I has a 'grooved rib 22 extending longitudinally of the strip. In another form the strip i9 has two ribs 35 extending longitudinally of its upper face, and a single rib 31 extending along its lower face between the ribs 35. These ribs 35 and 31 are solid with the strip IS. A guideway 36 is indicated as having suliicient crossarea to accommodate the three ribs 35 and 31. In a third form the strip has three grooved ribs 22 extending longitudinally of its upper face. The ribs of these several forms are notched transversely to facilitate the bending and coiling of the strips.

those skilled in the artwithout departing from the invention as defined in the following claims.

I claim: .I

1. In a safety rama a flexible blade strip in combination with a mounting comprising a iiat body part and a casing adapted to fit over the body part; said body part having a bridge piece extending across its upper end and having in its intermediate part a circular recess open at one side of the body part, said body part having a guide-way communicating with the recess and leading around the bridge piece and through the body part to a discharge outlet; said flexible blade strip being coiled and placed within the circular recess to expand therein, and said blade strip having an end part leading along the guideway of the body part to the discharge outlet; and said casing being slidable onto the body part to clamp the blade strip against the bridge piece.

2. In a safety razor as claimed in claim 1, characterized by the fact that an expansible spring is compressed within the coiled blade strip to augment the expansion of said blade strip against the circular wall of the recess in the body part.

3. In a. safety razor as claimed in claim 1, characterized by the fact that a disk is rotatably mounted in the lower part of the body part'to engage at its periphery the blade strip so that rotation of the disk draws the blade strip from y the coil and forces the free end of the blade strip through the discharge outlet of the body part.

4. In a safety razor as claimed in claim 1, characterized by the fact that both the body part and the casing have in their upper parts transverse openings that coincide when the casing is closed onto the body part, the coinciding openings providing a lather receptacle adjacent to the toothed bridge piece of the body part.

v 5. In a safety razor as claimed in claim l, characterized by the fact that the bridge piece of the body part has a ridge extending longitudinally of the same, and the strip blade has a longitudinal groove to engage the ridge of the bridge piece.

6. A safety razor as claimed in claim 1, characterized by the fact that at least one of the clamping membersprovided by the bridge piece and the opposing casing part and the blade strip have mutually engaging ridge and groove parts Various-other modifications may be made by to position the blade strip between the clamped parts.

'1. A safety razor as claimed in claim 1, characterized by the fact that a disk is rotatably mounted in the lower part of the body part and 5 the blade strip is provided with notches along its edges, said disk having lugs projecting from its periphery to engage the notches of the blade strip tc move the -latter as the disk is rotated.

8. In a. safety razor, a flexible blade strip adapted to be coiled and having a groove extending longitudinally of the same, with the grooved part notched transversely to facilitate the coiling of the same.

9. In a safety razor, a flexible blade strip ladapted to be coiled and having a rib extending v10. In a safety razor, a continuous exible 20 razor strip in combination with a mountingcomprising a substantially flat body part and a casing .adapted to iit over the body part, said body part having a bridge piece extending across its upper end andV also having in its intermediate 25 part a ysubstantially cylindrical chamber, said body part being further provided with a guideway communicating with the chamber and leading over the bridge piece and through the body part to a discharge opening, said strip being pro 30 vided through its full length with guiding means consisting of a longitudinal rib on its one face and a mating groove on its other face, the guideway having guiding means cooperating with said guiding means on the strip, said strip being coiled 35 and placed within the chamber and having an end part leading along the guide way of the body part to the discharge opening; and said casing being slidable onto the body part to clamp the strip against the bridge piece. 40

l1. A safety razor as claimed in claim l0, characterized by the fact that a spring is compressed within the coiled razor strip to expand said strip against the wall of said chamber.

l2. A safety razor as claimed in claim 10, characterized by the fact that a reel member is rotatably mounted in the lower part of the body part to engage at its periphery the strip passing Ato the discharge opening, so that rotation of the 13. A safety razor as claimed in claim 10, characterized by the fact that both the body part and the casing have in their upper parts transverse openings that coincide when the casing is closed onto the body part, the coinciding opening providing a lather receptacle adjacent to the bridge piece of the body part.

14. A safety razor as claimed in claim 10, characterized by the fact that the bridge piece of the 60 body part and the razor strip are in engagement with one another through a rib and a. groove extending longitudinally of the razor strip and bridge piece.

15. A safety razor as claimed in claim 10, characterized by the fact that at least one of the clamping members and the razor strip have mutually engaging rib and groove parts to position said strip between the clamping members.

16. In combination with a holder having a substantially cylindrical chamber, a coiled continuous razor strip provided with guiding means comprising a longitudinally extending groove on its one face and a mating ridge on its other face, said ridge being interrupted by a series of 'lon- 75 gitudinally spaced depressions extending substantially across the same, the inner wall ot said chamber having guiding means cooperating with the guiding means on the outer face o! kthe coil.

17. Inv combination with a. holder having a substantially cylindrical chamber, a coiled continuous razor stripprovided with guiding means comprising a longitudinally extending groove on its one face and a matins ridge on its other face. said ridge being interrupted by a series o! longitudinally spaced apertures extending substantially across theA same, the inner wall of said chamber having guiding means cooperating with 5 the guiding means on the outer face of the coil. ROBERT ERN. 

